<!-- Begin
function checkMetro(field, i) {
if (i == 0) { //All areas.
if (field[0].checked == true) {
for (i = 1; i <= 106; i++)
field[i].checked = true;
}
else 
if (field[0].checked == false) {
for (i = 1; i <= 106; i++)
field[i].checked = false;
    }
  }
else{
field[0].checked = false;
}
}

function checkMetro1(field, i) {
if (i == 1) { //
if (field[1].checked == true) {
for (i = 2; i <= 6; i++)
field[i].checked = true;
}
else 
if (field[1].checked == false) {
for (i = 2; i <= 6; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[1].checked = false;
}
}
function checkMetro2(field, i) {
if (i == 7) { 
if (field[7].checked == true) {
for (i = 8; i <= 11; i++)
field[i].checked = true;
}
else 
if (field[7].checked == false) {
for (i = 8; i <= 11; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[7].checked = false;
}
}

function checkMetro3(field, i) {
if (i == 12) { 
if (field[12].checked == true) {
for (i = 13; i <= 35; i++)
field[i].checked = true;
}
else 
if (field[12].checked == false) {
for (i = 13; i <= 35; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[12].checked = false;
}
}

function checkMetro4(field, i) {
if (i == 36) { 
if (field[36].checked == true) {
for (i = 37; i <= 47; i++)
field[i].checked = true;
}
else 
if (field[36].checked == false) {
for (i = 37; i <= 47; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[36].checked = false;
}
}

function checkMetro5(field, i) {
if (i == 48) { 
if (field[48].checked == true) {
for (i = 49; i <= 67; i++)
field[i].checked = true;
}
else 
if (field[48].checked == false) {
for (i = 49; i <= 67; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[48].checked = false;
}
}

function checkMetro6(field, i) {
if (i == 68) { 
if (field[68].checked == true) {
for (i = 69; i <= 106; i++)
field[i].checked = true;
}
else 
if (field[68].checked == false) {
for (i = 69; i <= 106; i++)
field[i].checked = false;
field[0].checked = false;
    }
  }
else{
field[0].checked = false;
field[68].checked = false;
}
}

function checkPr(field, i) {
if (i == 0) { 
if (field[0].checked == true) {
for (i = 1; i <= 6; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}

function checkBd(field, i) {
if (i == 0) { //Bedroom
if (field[0].checked == true) {
for (i = 1; i <= 5; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}

function checkBt(field, i) {
if (i == 0) { //Bath
if (field[0].checked == true) {
for (i = 1; i <= 5; i++)
field[i].checked = false;
}
  }
else{
field[0].checked = false;
}
}
//  End -->